Method of consolidating thermoplastic poly(amide-imide) componen

Details Method of consolidating thermoplastic poly(amide-imide) componen Method of consolidating thermoplastic poly(amide-imide) componen

1986-09-30

1988-08-23

Lowe, James

Plastic and nonmetallic article shaping or treating: processes

Direct application of fluid pressure differential to...

Producing multilayer work or article

264258, 264313, 26433112, B29D 900

Patent

active

047659424

ABSTRACT:
A method of consolidating fiber reinforced thermoplastic poly(amide-imide) components is disclosed that is suitable for use in fabricating large parts such as aircraft wing skins and the like. The method includes enclosing the part in a vacuum bag and placing the part in the bag in an autoclave. The method includes elevating the temperatures of the part to that where volatile solvent is substantially evaporated. Temperature of the part is then further increased until resin viscosity is reduced to a minimum. A pressure differential on the order of at least 150 psig is then applied at a high rate acting upon the article, causing the resin to flow to consolidate the part, resulting in a void-free composite.

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